Copy of CPO Electrical Power (6/7/2024)

You use a 1200 watt hair dryer for 10 minutes each day. How many minutes do you use the hair dryer in a month. (30 day month)

How many hours do you use the hair dryer in a month?

What is the power of the hairdryer in kilowatts?

How many kilo-watt hours of electricitydoes the haidryer use in a month?

If your town charges $0.15 per kWh, what is the cost to use the hair dryer for a month?

Your alarm clock is connected to a 120 volt circuit and draws 0.5 A of current.

Convert the power to kilowatts.

Calculate the number of kilowatt hours of electricity used by the alarm clock if it is left on for a year. (365 days)

Calculate the cost of using the alarm clock for one year if your town charges $0.15 per kWh?

A toaster is plugged into a 120 volt household circuit. It draws 5 amps of current. What is the resistance of the toaster?

What is the power of the toaster in watts?

What is the power in kilowatts

A circuit contains a 12 volt battery and two 3 ohm bulbs ind series. Calculate the total resistance of the circuit

Calculate the current in the circuit.

Calculate the power of each bulb.

Calculate the power supplied by the battery

A circuit contains a 12 volt battery 3 ohm bulbs in parallel. What is the voltage across each branch

Calculate the current in each branch.

Calculate the powerof each bulb

Calculate the total curent in the circuit